Not the best sorting I'd say. I also love Howl's Moving Castle. Akira is a good start but the story is not the best when considering Spirited Away. It is the most outstanding creation ever. My personal favorites are S/A and Mononoke.

5/10 are either Miyazaki or Studio Ghibli. How is My Neighbour Totoro and Grave of the Fireflies higher than Spirited Away and Princess Mononoke?! Spirited Away should be 1 or 2 and Princess Mononoke should be 3-5 at the least.